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annotate Core/Images/Font.h @ 3992:f9863630ec7f

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working on the shared library for Orthanc framework
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 05 Jun 2020 16:07:01 +0200
parents 94f4a18a79cc
children 100fbe970762
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
1900
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU General Public License as
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9 * published by the Free Software Foundation, either version 3 of the
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10 * License, or (at your option) any later version.
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11 *
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12 * In addition, as a special exception, the copyright holders of this
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13 * program give permission to link the code of its release with the
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14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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15 * that use the same license as the "OpenSSL" library), and distribute
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16 * the linked executables. You must obey the GNU General Public License
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17 * in all respects for all of the code used other than "OpenSSL". If you
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18 * modify file(s) with this exception, you may extend this exception to
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19 * your version of the file(s), but you are not obligated to do so. If
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20 * you do not wish to do so, delete this exception statement from your
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21 * version. If you delete this exception statement from all source files
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22 * in the program, then also delete it here.
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23 *
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24 * This program is distributed in the hope that it will be useful, but
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25 * WITHOUT ANY WARRANTY; without even the implied warranty of
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26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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27 * General Public License for more details.
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28 *
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29 * You should have received a copy of the GNU General Public License
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30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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31 **/
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32
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33
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34 #pragma once
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35
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36 // To have ORTHANC_HAS_EMBEDDED_RESOURCES defined if using the shared library
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37 #include "../OrthancFramework.h"
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38
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39 #if !defined(ORTHANC_HAS_EMBEDDED_RESOURCES)
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40 # error Macro ORTHANC_HAS_EMBEDDED_RESOURCES must be defined
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41 #endif
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42
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43 #if ORTHANC_HAS_EMBEDDED_RESOURCES == 1
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44 # include <EmbeddedResources.h> // Autogenerated file
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45 #endif
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46
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47 #include "ImageAccessor.h"
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48
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49 #include <stdint.h>
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50 #include <vector>
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51 #include <map>
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52 #include <boost/noncopyable.hpp>
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53
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54 namespace Orthanc
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55 {
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56 class ORTHANC_PUBLIC Font : public boost::noncopyable
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57 {
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58 private:
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59 struct Character
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60 {
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61 unsigned int width_;
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62 unsigned int height_;
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63 unsigned int top_;
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64 unsigned int advance_;
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65 std::vector<uint8_t> bitmap_;
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66 };
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67
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68 typedef std::map<char, Character*> Characters;
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69
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70 std::string name_;
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71 unsigned int size_;
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72 Characters characters_;
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73 unsigned int maxHeight_;
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74
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75 void DrawCharacter(ImageAccessor& target,
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76 const Character& character,
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77 int x,
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78 int y,
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79 const uint8_t color[4]) const;
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80
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81 void DrawInternal(ImageAccessor& target,
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82 const std::string& utf8,
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83 int x,
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84 int y,
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85 const uint8_t color[4]) const;
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86
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87 public:
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88 Font() :
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89 size_(0),
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90 maxHeight_(0)
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91 {
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92 }
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93
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94 ~Font();
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95
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96 void LoadFromMemory(const std::string& font);
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97
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98 #if ORTHANC_SANDBOXED == 0
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99 void LoadFromFile(const std::string& path);
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100 #endif
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101
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102 #if ORTHANC_HAS_EMBEDDED_RESOURCES == 1
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103 void LoadFromResource(EmbeddedResources::FileResourceId resource);
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104 #endif
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105
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106 const std::string& GetName() const
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107 {
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108 return name_;
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109 }
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110
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111 unsigned int GetSize() const
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112 {
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113 return size_;
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114 }
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115
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116 void Draw(ImageAccessor& target,
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117 const std::string& utf8,
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118 int x,
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119 int y,
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120 uint8_t grayscale) const;
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121
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122 void Draw(ImageAccessor& target,
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123 const std::string& utf8,
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124 int x,
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125 int y,
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126 uint8_t r,
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127 uint8_t g,
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128 uint8_t b) const;
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129
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130 void ComputeTextExtent(unsigned int& width,
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131 unsigned int& height,
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132 const std::string& utf8) const;
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133
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134 ImageAccessor* Render(const std::string& utf8,
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135 PixelFormat format,
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136 uint8_t r,
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137 uint8_t g,
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138 uint8_t b) const;
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139
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140 ImageAccessor* RenderAlpha(const std::string& utf8) const;
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141 };
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142 }